Traffic generator

Details Traffic generator Traffic generator

1994-04-28

1995-09-12

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370102, H04L 1254

Patent

active

054504007

ABSTRACT:
A traffic generator (TFG) is provided for generating a packet information stream (OUT) with predetermined characteristics based on individual characteristics of a plurality of traffic sources (S0-255, G240-241). Such a traffic generator is used in an Asynchronous Transfer Mode or ATM networks and thus plays an important role in the emergence of such networks. The traffic generator includes a generation memory (GT) for storing a series of individual data (Group A-E) related to traffic sources (S0-255, G240-241), and includes a generation circuit (GM) for cyclically reading a series of individual source related data. Each of the individual source related data (Group A-E) relates to at least one of the traffic sources (S0-255, G240-241) as well as to generation decision data (GD, GEOT) associated thereto. Based on its associated generation decision data (GD, GEOT), the generation circuit (GM) determines whether a packet is to be generated for the at least one traffic source (S0-255, G240-241) or not, and generates an idle packet if no packet is to be generated for the at least one traffic source (S0-255, G240-241). The generation decision data (GD, GEOT) eliminates the need to run a complicated and time-consuming algorithm for calculating a new series of individual source related data every time the actual bit rate of one of the sources is updated.

REFERENCES:
patent: 5132964 (1992-07-01), Esaki
patent: 5132966 (1992-07-01), Hayano et al.
patent: 5140584 (1992-08-01), Suzuki
patent: 5153578 (1992-10-01), Izawa et al.
patent: 5228032 (1993-07-01), Mertelmeier
Electronics and Communication Engineering Journal, vol. 4, No. 4, Aug. 1992, London GB, pp. 243-251; XP000309441, T. Migotti & A1, "Performance evaluation of broadband connections and services under varying traffic loads".
NTZ Nachrichtentechnische Zeitschrift, vol. 46, No. 2, Feb. 1993, Berlin De pp. 102-108. XP298898, W. Andexser & AL. "ATM Messtechnik fur das Breitband-ISDN".

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